Reliability,
availability,
and
serviceability
Three
important
computer
design
features
are
reliability,
availability,
and
serviceability
(RAS).
The
RAS
features
help
to
ensure
the
integrity
of
the
data
that
is
stored
in
the
server,
the
availability
of
the
server
when
you
need
it,
and
the
ease
with
which
you
can
diagnose
and
correct
problems.
The
server
has
the
following
RAS
features:
v
Active
PCI
™
(hot-plug)
adapter
slot
v
Automatic
error
retry
and
recovery
v
Automatic
restart
after
a
power
failure
v
Backup
basic
input/output
system
(BIOS)
switching
under
the
control
of
the
service
processor
v
Baseboard
management
controller
(service
processor)
v
Built-in,
menu-driven
electrically
erasable
programmable
ROM
(EEPROM)
based
setup,
system
configuration,
redundant
array
of
independent
disks
(RAID)
configuration,
and
diagnostic
programs
v
Built-in
monitoring
for
fan,
power,
temperature,
voltage,
and
power-supply
redundancy
v
Chipkill
memory
protection
(x4
512
MB
or
higher
DIMMs)
v
Error
codes
and
messages
v
Error
correcting
code
(ECC)
L2
cache
and
system
memory
v
Fault-resistant
startup
v
Hot-swap
hard
disk
drives
v
IBM
Director
workgroup-hardware-management
tool
v
Integrated
system
management
processor
(ISMP)
v
Information
and
light
path
diagnostics
LED
panels
v
Integrated
service
processor
subsystem
for
remote
system
management
v
Key
lock
support
for
physical
security
v
Availability
of
microcode
and
diagnostic
levels
v
Parity
checking
on
the
small
computer
system
interface
(SCSI)
bus
and
PCI
buses
v
Power
managed
and
Advanced
Configuration
and
Power
Interface
(ACPI)
compliant
v
Power-on
self-test
(POST)
v
Predictive
Failure
Analysis
(PFA)
alerts
v
Redundant
Ethernet
capabilities
(requires
optional
Ethernet
adapter)
with
failover
support
v
Redundant
hot-swap
capability
–
Cooling
fans
with
speed-sensing
capability
–
Cooling
fans
with
speed-sensing
capability
(with
hot-swap
power-supply
option)
–
Power
supplies
v
Remind
button
to
temporarily
flash
the
Attention
LED
v
Remote
system
problem-determination
support
v
ROM-based
diagnostic
programs
v
Standby
voltage
for
system-management
features
and
monitoring
v
Startup
(boot)
from
LAN
using
Preboot
Execution
Environment
(PXE)
protocol
v
System
auto-configuring
from
the
configuration
menu
v
System
error
logging
(POST
and
service
processor
when
Remote
Supervisor
Adapter
II
SlimLine
is
installed)
v
Universal
Serial
Bus
(USB)
keyboard
and
mouse
v
Upgradeable
microcode
for
POST,
BIOS,
diagnostics,
service
processor,
and
read-only
memory
(ROM)
resident
code,
locally
or
over
the
LAN
v
Vital
product
data
(VPD)
on
microprocessors,
system
board,
power
supplies,
and
SCSI
(hot-swap-drive)
backplane
6
IBM
xSeries
236
Type
8841:
User’s
Guide
Summary of Contents for eServer xSeries 236
Page 1: ...IBM xSeries 236 Type 8841 User s Guide ERserver...
Page 2: ......
Page 3: ...IBM xSeries 236 Type 8841 User s Guide ERserver...
Page 28: ...16 IBM xSeries 236 Type 8841 User s Guide...
Page 52: ...40 IBM xSeries 236 Type 8841 User s Guide...
Page 65: ......
Page 66: ...Part Number 25K9164 Printed in USA 1P P N 25K9164...
